Turbo compressor casing



FIG. 1 is a front elevational view of a turbo compressor casing showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The broken line showing of a drive motor in FIGS. 1 and 2 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a turbo compressor casing, as shown and described. 